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Water Heaters
Tankless Water Heaters
Gas Tankless Water Heaters
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Gas Tankless Water Heaters
(79)
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AO Smith®
(1)
Approved Vendor
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Bosch
(11)
Bradford White®
(4)
KD Navien®
(19)
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Commercial/Residential/Dual
Residential
(20)
Commercial/Residential
(16)
Commercial
(2)
Dimensions
17-3/4 in W x 11-1/4 in D
(9)
17-7/8 in W x 11-1/4 in D x 30-1/2 in H
(4)
20.5 in H x 13.8 in W x 6.7 in D
(3)
22-1/2 in H x 17-3/4 in W x 10-3/4 in D
(3)
24.2 in H x 18.3 in W x 9.4 in D
(3)
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Energy Factor
0.9
(6)
0.95
(6)
0.82
(5)
0.93
(5)
0.94
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Flow Rate
10
(7)
6.6
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8
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0.5
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0.5 to 9.8
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Natural Gas
(22)
Liquid Propane
(13)
Natural/Liquid Propane
(3)
Gas Connection
3/4 in NPT
(16)
3/4
(9)
3/4 in MNPT
(7)
1/2 in NPT
(3)
1 in NPT
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Indoor/Outdoor
Indoor
(23)
Outdoor
(9)
Indoor/Outdoor
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Pressure Rating
15 to 150
(11)
4 to 10-1/2 in WC Gas/15 to 150 psi Water
(7)
8 to 14 in WC Gas/15 to 150 psi Water
(5)
30 to 150
(4)
18 to 150 psi Water, 3.5 to 10.5 in WC/8 to 13 in WC Gas
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Series
H3J
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H3S
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Greentherm
(3)
Greentherm 9000 Series
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H3
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Ultra Low NOx
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(23)
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(15)
Gas Tankless Water Heaters
79 Products
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Bradford White®
Bradford White® RTGS199N1 GS Series Tankless Gas Water Heater, Natural Gas Fuel, 199000 Btu/hr Heating, Indoor/Outdoor: Indoor/Outdoor, Condensing, 5.2 gpm Flow Rate, 5 in Vent, 0.95, Commercial/Residential
Mfr Part #
RTGS199N1
Item #
1684777
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KD Navien®
KD Navien® NPE240A2 NPE-A2 Series High Efficiency Premium Advanced Tankless Gas Water Heater, Natural Gas/Liquid Propane Fuel, 13300 to 199900 Btu/hr Heating, Indoor/Outdoor: Indoor/Outdoor, Condensing, 11.2 gpm at 35 deg F Flow Rate, 2 in Vent, Dual
Mfr Part #
NPE240A2
Item #
1618390
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pl /12
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KD Navien®
KD Navien® NPE240S2 NPE-S2 Series High Efficiency Premium Standard Tankless Gas Water Heater, Natural Gas/Liquid Propane Fuel, 13300 to 199900 Btu/hr Heating, Indoor/Outdoor: Indoor/Outdoor, Condensing, 11.2 gpm at 35 deg F Flow Rate, 2 in Vent, Dual
Mfr Part #
NPE240S2
Item #
1682092
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Bosch
Bosch 7736503581 Greentherm 9000 Series Gas Tankless Water Heater, Natural/Liquid Propane Fuel, 9000 to 199000 Btu/hr Natural Gas, 17000 Btu/hr LPG Input, 197010 Btu/hr Output Heating, Indoor/Outdoor: Indoor, Condensing, 0.45 gpm Flow Rate, Direct Vent
Mfr Part #
7736503581
Item #
1392431
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Bosch
Bosch 7736503731 Greentherm 9000 Series Gas Tankless Water Heater With Built-In Recirculation Pump, Natural/Liquid Propane Fuel, 9000 to 199000 Btu/hr Natural Gas, 17000 Btu/hr LPG Input, 197010 Btu/hr Output Heating, Indoor/Outdoor: Indoor, Condensing
Mfr Part #
7736503731
Item #
1392417
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KD Navien®
KD Navien® NPE180S2 NPE-S2 Series High Efficiency Premium Standard Tankless Gas Water Heater, Natural Gas/Liquid Propane Fuel, 10000 to 150000 Btu/hr Heating, Indoor/Outdoor: Indoor/Outdoor, Condensing, 8.4 gpm at 35 deg F Flow Rate, 2 in Vent, Dual
Mfr Part #
NPE180S2
Item #
1704576
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KD Navien®
KD Navien® NPE210S2 NPE-S2 Series High Efficiency Premium Standard Tankless Gas Water Heater, Natural Gas/Liquid Propane Fuel, 12000 to 180000 Btu/hr Heating, Indoor/Outdoor: Indoor/Outdoor, Condensing, 10.1 gpm at 35 deg F Flow Rate, 2 in Vent, Dual
Mfr Part #
NPE210S2
Item #
1704580
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KD Navien®
KD Navien® NPN199UNG NPN-U Series Premium Universal Tankless Gas Water Heater, Natural Gas Fuel, 10700 to 199900 Btu/hr Heating, Indoor/Outdoor: Indoor/Outdoor, Non-Condensing, 9.5 gpm at 35 deg F Flow Rate, Forced Draft Direct Vent, 3 x 5 in Vent, Dual
Mfr Part #
NPN199UNG
Item #
1704629
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Takagi
Takagi 100123383 H3 Series Tankless Water Heater, Natural Gas Fuel, 199000 Btu/hr Heating, Indoor/Outdoor: Indoor, Condensing, 10 gpm Flow Rate, Direct/Power Vent, 4 in Vent, 0.93, Commercial/Residential
Mfr Part #
100123383
Item #
1137158
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KD Navien®
KD Navien® NPE150S2 NPE-S2 Series High Efficiency Premium Standard Tankless Gas Water Heater, Natural Gas/Liquid Propane Fuel, 18000 to 120000 Btu/hr Heating, Indoor/Outdoor: Indoor/Outdoor, Condensing, 6.8 gpm at 35 deg F Flow Rate, 2 in Vent, Dual
Mfr Part #
NPE150S2
Item #
1704582
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